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https://github.com/pgvector/pgvector.git
synced 2026-06-06 05:51:21 +08:00
Added halfvec type
This commit is contained in:
Andrew Kane
@@ -32,3 +32,129 @@ CREATE OPERATOR CLASS bit_jaccard_ops
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FOR TYPE bit USING hnsw AS
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OPERATOR 1 <%> (bit, bit) FOR ORDER BY float_ops,
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FUNCTION 1 jaccard_distance(bit, bit);
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CREATE TYPE halfvec;
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CREATE FUNCTION halfvec_in(cstring, oid, integer) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec_out(halfvec) RETURNS cstring
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec_typmod_in(cstring[]) RETURNS integer
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec_recv(internal, oid, integer) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec_send(halfvec) RETURNS bytea
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE TYPE halfvec (
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INPUT = halfvec_in,
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OUTPUT = halfvec_out,
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TYPMOD_IN = halfvec_typmod_in,
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RECEIVE = halfvec_recv,
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SEND = halfvec_send,
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STORAGE = external
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);
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CREATE FUNCTION l2_distance(halfvec, halfvec) RETURNS float8
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AS 'MODULE_PATHNAME', 'halfvec_l2_distance' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION inner_product(halfvec, halfvec) RETURNS float8
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AS 'MODULE_PATHNAME', 'halfvec_inner_product' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION cosine_distance(halfvec, halfvec) RETURNS float8
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AS 'MODULE_PATHNAME', 'halfvec_cosine_distance' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION l1_distance(halfvec, halfvec) RETURNS float8
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AS 'MODULE_PATHNAME', 'halfvec_l1_distance' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec_norm(halfvec) RETURNS float8
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec_l2_squared_distance(halfvec, halfvec) RETURNS float8
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec_negative_inner_product(halfvec, halfvec) RETURNS float8
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec(halfvec, integer, boolean) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION array_to_halfvec(integer[], integer, boolean) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION array_to_halfvec(real[], integer, boolean) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION array_to_halfvec(double precision[], integer, boolean) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION array_to_halfvec(numeric[], integer, boolean) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec_to_float4(halfvec, integer, boolean) RETURNS real[]
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE CAST (halfvec AS halfvec)
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WITH FUNCTION halfvec(halfvec, integer, boolean) AS IMPLICIT;
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CREATE CAST (halfvec AS real[])
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WITH FUNCTION halfvec_to_float4(halfvec, integer, boolean) AS IMPLICIT;
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CREATE CAST (integer[] AS halfvec)
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WITH FUNCTION array_to_halfvec(integer[], integer, boolean) AS ASSIGNMENT;
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CREATE CAST (real[] AS halfvec)
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WITH FUNCTION array_to_halfvec(real[], integer, boolean) AS ASSIGNMENT;
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CREATE CAST (double precision[] AS halfvec)
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WITH FUNCTION array_to_halfvec(double precision[], integer, boolean) AS ASSIGNMENT;
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CREATE CAST (numeric[] AS halfvec)
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WITH FUNCTION array_to_halfvec(numeric[], integer, boolean) AS ASSIGNMENT;
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CREATE OPERATOR <-> (
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LEFTARG = halfvec, RIGHTARG = halfvec, PROCEDURE = l2_distance,
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COMMUTATOR = '<->'
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);
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CREATE OPERATOR <#> (
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LEFTARG = halfvec, RIGHTARG = halfvec, PROCEDURE = halfvec_negative_inner_product,
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COMMUTATOR = '<#>'
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);
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CREATE OPERATOR <=> (
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LEFTARG = halfvec, RIGHTARG = halfvec, PROCEDURE = cosine_distance,
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COMMUTATOR = '<=>'
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);
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CREATE OPERATOR CLASS halfvec_l2_ops
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FOR TYPE halfvec USING hnsw AS
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OPERATOR 1 <-> (halfvec, halfvec) FOR ORDER BY float_ops,
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FUNCTION 1 halfvec_l2_squared_distance(halfvec, halfvec);
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CREATE OPERATOR CLASS halfvec_ip_ops
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FOR TYPE halfvec USING hnsw AS
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OPERATOR 1 <#> (halfvec, halfvec) FOR ORDER BY float_ops,
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FUNCTION 1 halfvec_negative_inner_product(halfvec, halfvec);
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CREATE OPERATOR CLASS halfvec_cosine_ops
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FOR TYPE halfvec USING hnsw AS
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OPERATOR 1 <=> (halfvec, halfvec) FOR ORDER BY float_ops,
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FUNCTION 1 halfvec_negative_inner_product(halfvec, halfvec),
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FUNCTION 2 halfvec_norm(halfvec);
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CREATE FUNCTION halfvec_to_vector(halfvec, integer, boolean) RETURNS vector
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION vector_to_halfvec(vector, integer, boolean) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE CAST (halfvec AS vector)
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WITH FUNCTION halfvec_to_vector(halfvec, integer, boolean) AS IMPLICIT;
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CREATE CAST (vector AS halfvec)
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WITH FUNCTION vector_to_halfvec(vector, integer, boolean) AS IMPLICIT;
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142
sql/vector.sql
142
sql/vector.sql
@@ -321,3 +321,145 @@ CREATE OPERATOR CLASS bit_jaccard_ops
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FOR TYPE bit USING hnsw AS
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OPERATOR 1 <%> (bit, bit) FOR ORDER BY float_ops,
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FUNCTION 1 jaccard_distance(bit, bit);
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-- halfvec type
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CREATE TYPE halfvec;
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CREATE FUNCTION halfvec_in(cstring, oid, integer) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec_out(halfvec) RETURNS cstring
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec_typmod_in(cstring[]) RETURNS integer
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec_recv(internal, oid, integer) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec_send(halfvec) RETURNS bytea
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE TYPE halfvec (
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INPUT = halfvec_in,
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OUTPUT = halfvec_out,
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TYPMOD_IN = halfvec_typmod_in,
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RECEIVE = halfvec_recv,
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SEND = halfvec_send,
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STORAGE = external
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);
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-- halfvec functions
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CREATE FUNCTION l2_distance(halfvec, halfvec) RETURNS float8
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AS 'MODULE_PATHNAME', 'halfvec_l2_distance' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION inner_product(halfvec, halfvec) RETURNS float8
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AS 'MODULE_PATHNAME', 'halfvec_inner_product' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION cosine_distance(halfvec, halfvec) RETURNS float8
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AS 'MODULE_PATHNAME', 'halfvec_cosine_distance' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION l1_distance(halfvec, halfvec) RETURNS float8
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AS 'MODULE_PATHNAME', 'halfvec_l1_distance' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec_norm(halfvec) RETURNS float8
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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-- halfvec private functions
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CREATE FUNCTION halfvec_l2_squared_distance(halfvec, halfvec) RETURNS float8
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec_negative_inner_product(halfvec, halfvec) RETURNS float8
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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-- halfvec cast functions
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CREATE FUNCTION halfvec(halfvec, integer, boolean) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION array_to_halfvec(integer[], integer, boolean) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION array_to_halfvec(real[], integer, boolean) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION array_to_halfvec(double precision[], integer, boolean) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION array_to_halfvec(numeric[], integer, boolean) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION halfvec_to_float4(halfvec, integer, boolean) RETURNS real[]
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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-- halfvec casts
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CREATE CAST (halfvec AS halfvec)
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WITH FUNCTION halfvec(halfvec, integer, boolean) AS IMPLICIT;
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CREATE CAST (halfvec AS real[])
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WITH FUNCTION halfvec_to_float4(halfvec, integer, boolean) AS IMPLICIT;
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CREATE CAST (integer[] AS halfvec)
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WITH FUNCTION array_to_halfvec(integer[], integer, boolean) AS ASSIGNMENT;
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CREATE CAST (real[] AS halfvec)
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WITH FUNCTION array_to_halfvec(real[], integer, boolean) AS ASSIGNMENT;
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CREATE CAST (double precision[] AS halfvec)
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WITH FUNCTION array_to_halfvec(double precision[], integer, boolean) AS ASSIGNMENT;
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CREATE CAST (numeric[] AS halfvec)
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WITH FUNCTION array_to_halfvec(numeric[], integer, boolean) AS ASSIGNMENT;
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-- halfvec operators
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CREATE OPERATOR <-> (
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LEFTARG = halfvec, RIGHTARG = halfvec, PROCEDURE = l2_distance,
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COMMUTATOR = '<->'
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);
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CREATE OPERATOR <#> (
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LEFTARG = halfvec, RIGHTARG = halfvec, PROCEDURE = halfvec_negative_inner_product,
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COMMUTATOR = '<#>'
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);
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CREATE OPERATOR <=> (
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LEFTARG = halfvec, RIGHTARG = halfvec, PROCEDURE = cosine_distance,
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COMMUTATOR = '<=>'
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);
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-- halfvec opclasses
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CREATE OPERATOR CLASS halfvec_l2_ops
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FOR TYPE halfvec USING hnsw AS
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OPERATOR 1 <-> (halfvec, halfvec) FOR ORDER BY float_ops,
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FUNCTION 1 halfvec_l2_squared_distance(halfvec, halfvec);
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CREATE OPERATOR CLASS halfvec_ip_ops
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FOR TYPE halfvec USING hnsw AS
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OPERATOR 1 <#> (halfvec, halfvec) FOR ORDER BY float_ops,
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FUNCTION 1 halfvec_negative_inner_product(halfvec, halfvec);
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CREATE OPERATOR CLASS halfvec_cosine_ops
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FOR TYPE halfvec USING hnsw AS
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OPERATOR 1 <=> (halfvec, halfvec) FOR ORDER BY float_ops,
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FUNCTION 1 halfvec_negative_inner_product(halfvec, halfvec),
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FUNCTION 2 halfvec_norm(halfvec);
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-- extension casts
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CREATE FUNCTION halfvec_to_vector(halfvec, integer, boolean) RETURNS vector
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION vector_to_halfvec(vector, integer, boolean) RETURNS halfvec
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE CAST (halfvec AS vector)
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WITH FUNCTION halfvec_to_vector(halfvec, integer, boolean) AS IMPLICIT;
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CREATE CAST (vector AS halfvec)
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WITH FUNCTION vector_to_halfvec(vector, integer, boolean) AS IMPLICIT;
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